CVE-2026-51741

Incorrect access control in the clearDiagnosisLog function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to erase diagnosis logs via sending a crafted POST request to /cgi-bin/cstecgi.cgi.

• Published Sep 1, 2026
• CVSS 9.8 critical
• 0.6% chance of exploitation in the next 30 days (EPSS)

CVE-2026-51741 at the National Vulnerability Database